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High temperature metallic inorganic coating for labels and preparation thereof

An inorganic coating, high-temperature technology, applied in coatings, devices for coating liquid on the surface, etc., can solve problems such as low high-temperature adhesion, influence on steel production quality monitoring, high-temperature easy combustion, etc., to improve high-temperature adhesion, good Effects of storage stability and sprayability, improvement of water resistance and abrasion resistance

Inactive Publication Date: 2011-09-28
王如贵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the above reasons, the high-temperature coatings currently used in steel mills have the problem of low high-temperature adhesion, which affects the quality monitoring of steel production
There are high-temperature inkjet coatings imported from abroad, because they are organic coatings, which are not only expensive, but also have the defects of low high-temperature adhesion and high-temperature flammability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] First, add 10 liters of distilled water into the reactor, and adjust the pH value of the water in the reaction vessel to 1-7. Under the condition of strong stirring, titanium tetrachloride solution and sodium carbonate (or ammonium carbonate) solution are added alternately, while keeping the pH value of the solution fluctuating between 1 and 7, and the reaction temperature is 10-80°C. After adding the titanium tetrachloride solution and sodium carbonate for 30 minutes, vacuum filter and wash with water until neutral to obtain nanometer metatitanic acid.

[0022] 10 kg of rutile titanium dioxide, 51 kg of high modulus potassium water glass, 27 kg of low modulus sodium water glass, 2 kg of sodium nitrate, 4 kg of sodium nitrite and potassium nitrite, 10 kg of nanometer metatitanic acid, ethylene glycol 2 kg and 15 kg of water, mix well under the stirring of the disperser, and then use a sand mill or a three-axis mill to grind to a fineness ≤ 30 μm; then pass in carbon dio...

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PUM

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Abstract

The invention discloses an inorganic paint for labeling high-temperature metal. The content (in parts by weight) and components of the inorganic paint is as follows: 5 to 50 parts of waterglass, 1 to 10 parts of nitrate, 1 to 10 parts of nano-metatitanic acid and 2 to 20 parts of nitrite. The inorganic paint is silicon-gelatinized, the coating 4 cup viscosity range is regulated between 17 and 35 seconds by blowing into carbon dioxide. The paint has excellent adhesive force on the surface of high-temperature metal, and can be sprayed manually or be sprayed automatically by use of spraying equipment.

Description

technical field [0001] The invention relates to a coating for marking high-temperature metals, in particular to an inorganic coating for manually or automatically spraying markings on steel at a high temperature of 200-700°C and a preparation method thereof. Background technique [0002] At present, the coatings used on steel are mainly used for anticorrosion and fire prevention of various steel structures. The types of coatings are divided into organic and inorganic. The use of these coatings is to brush under normal temperature conditions, and then use it under various conditions after drying. If these coatings are directly used for marking steel surfaces under high temperature conditions, it is difficult for these coatings to adhere to the metal surface due to the huge difference in surface tension between the steel surface and low temperature steel. Due to the above reasons, the high-temperature coatings currently used in steel mills have the problem of low high-tempera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00B05D7/14
Inventor 王如贵
Owner 王如贵
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